You are exactly correct.
This is quoted from the WilliamHill free money FAQ :

Why can I only play the beginner’s limits?

If you start to play with your initial $10 free poker money, there is a bankroll limitation in place which only allows you to play at the limits recommended in our beginner’s strategy. As a beginner, you can only play stakes up to:

• No-Limit up to €£0.02/0.04

• Fixed Limit up to €£0.05/0.10

• Sit and Go up to €£1

In order lift this restriction you can either make a deposit of any amount or generate $20 in rake and/or tournament fees.

This post has been edited 2 time(s), it was last edited by iSoOwnYou: 03.01.2015 05:56.

Hey feret, with small bankroll it is like throwing it on a roullete wheel anyway if you play anything higher, if you follow sound bankroll strategy and have a winning strategy or learn one from here, you will make money at this game

Don't mean to tell you how to suck eggs (you have been here alot longer than i have) but just flagging from personal failed experience